I've found several of these creatures in my front yard... What should I do?

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After some googling I found out that they are called "Cicada Wasp Killers".

As a person who is scared of all stinging insects, what should I do now that I've found out that these horrific creatures have invaded my front yard?

http://www.youtube.com/watch?v=aCCmdnS7zjg

http://www.youtube.com/watch?v=xrI03sdyuYw

http://www.youtube.com/watch?v=lGc1qq8D0sI